ci(validate): added launcher prefix validation + list of allowed tags

.github/workflows/test_validate_plugins.py

@@ -0,0 +1,69 @@
+from __future__ import annotations
+
+import importlib.util
+import unittest
+from pathlib import Path
+
+
+VALIDATOR_PATH = Path(__file__).with_name("validate-plugins.py")
+SPEC = importlib.util.spec_from_file_location("validate_plugins", VALIDATOR_PATH)
+assert SPEC is not None and SPEC.loader is not None
+validate_plugins = importlib.util.module_from_spec(SPEC)
+SPEC.loader.exec_module(validate_plugins)
+
+
+class LauncherPrefixTests(unittest.TestCase):
+    def validate_prefix(self, prefix: str) -> list[str]:
+        validator = validate_plugins.Validator(Path("/repo"))
+        validator.validate_launcher_fields(
+            Path("/repo/example/plugin.toml"),
+            "launcher_provider[0]",
+            {"prefix": prefix},
+        )
+        return validator.errors
+
+    def test_accepts_lowercase_ascii_letters(self) -> None:
+        self.assertEqual(self.validate_prefix("bla"), [])
+
+    def test_rejects_leading_symbol(self) -> None:
+        self.assertNotEqual(self.validate_prefix("/bla"), [])
+
+    def test_rejects_uppercase_letters(self) -> None:
+        self.assertNotEqual(self.validate_prefix("Bla"), [])
+
+    def test_rejects_digits(self) -> None:
+        self.assertNotEqual(self.validate_prefix("bla2"), [])
+
+    def test_rejects_other_symbols(self) -> None:
+        self.assertNotEqual(self.validate_prefix("bla-bla"), [])
+
+
+class AllowedTagsTests(unittest.TestCase):
+    def validate_tags(self, tags: object) -> list[str]:
+        validator = validate_plugins.Validator(Path("/repo"))
+        validator.validate_tags(Path("/repo/example/plugin.toml"), tags)
+        return validator.errors
+
+    def test_accepts_every_allowed_tag(self) -> None:
+        self.assertEqual(self.validate_tags(sorted(validate_plugins.ALLOWED_TAGS)), [])
+
+    def test_rejects_unknown_tag(self) -> None:
+        self.assertEqual(
+            self.validate_tags(["utility", "unknown"]),
+            [
+                "example/plugin.toml: root: "
+                "tags[1] 'unknown' is not an allowed tag"
+            ],
+        )
+
+    def test_rejects_wrong_case(self) -> None:
+        self.assertNotEqual(self.validate_tags(["Utility"]), [])
+
+    def test_retains_string_list_validation(self) -> None:
+        errors = self.validate_tags(["utility", "utility", ""])
+        self.assertTrue(any("duplicate 'utility'" in error for error in errors))
+        self.assertTrue(any("tags[2] must be a non-empty string" in error for error in errors))
+
+
+if __name__ == "__main__":
+    unittest.main()